Scrap metal theft!

A tweaker walked into my neighbors back yard and came walking out with his trolling motor and pressure washer. I confronted him and he put the stuff down and got into his truck and left. After being questioned by the law, he told the officer that he was looking for scrap and thought the stuff was scrap. I kept telling the cop that he was trespassing by going into the neighbors back yard. The guy got a warning not to do it again, WOOO scares me, what a joke.